Pin clasp



Jul 3, 1923. 11,460,998

J. ZANGRILLI PIN CLASP Filed March 22 1925 WITNESSES INVEN OR o se 72Z6117 rzZ/z BY W I ATTORNEYS Patented July 3, i923,

JOSEPH ZANGRILLIFL, OF NEW' YORK, N. Y.

PIN CLASP.

Application filed March 22, 1923. Serial No. 625,973.

"gested devices of its general class, to secure retention of the engagedcorners of the collar wlthout undue stram thereon; to fac lr tate the111881131011 and removal of the p1n clasp or holder; tomake itpossibleto leave the holder securely engaged with one corner for future useafter the other corner has been released; and, while embodyingieaturesof extreme inconspicuousness and simplicity of structure and reliabilityof function, to present a pin-clasp which will satisfy the followingimportant'objects:

First, a pin-clasp which shall include a main central structure carryingat opposite ends a pair of oppositely directed pins one of which atleast is slidable on the main structure relative to the other pin, butalways to maintain each pin against swinging movement relative to theother, preferably by maintaining the pinning lengths of the pins inmutual prolongation, and yet a pin-clasp including means to the endlastmentioned which shall be exceedingly simple and inexpensive andcapable of being duplicated in large quantities at a minimum cost andwith a minimum loss of material if any.

Second, a pin-clasp as just characterized, but wherein preferably themain central structure is likewise a simple, inexpensive construction,preferably a tube closed all along its length and at both ends, exceptfor an elongate slot in each of such ends; thereby to permit such slotsto co-act with pin-carrying spring-urged strip-like slide members onealways in the plane of the other, that is, with the main parts of suchslide members in mutual prolongation, and thereby, further, to permitsuch spring means to be housed and totally concealed by and within themain structure.

Third, a pin-clasp as just characterized,

but wherein preferably the pinning means proper for each slide member isa separate L-shaped length of a standard size round wire, and with theshank portion thereof embraced by a coile d-over terminal portion of itsassociated slide member, thereby to constitute said coiled-over end intoan enlarged instrumentality for finger pull.

The invention will be best understood from a consideration of thefollowing detailed description when taken in connection with theaccompanying drawing forming part of this specification; with the understanding, however, that such drawing illustrates, merely by way ofexample, one pos sible embodiment of the invention, and that theinvention is not confined to any strict conformity with the showing inthe drawing, but may 'e changed and modified so long as such changes andmodifications mark no material departure from the salient features ofthe invention as expressed in the appended claims.

In said drawing:

Fig. 1 is a perspective view of such embodiment 2 shows, on an enlargedscale, what would be a substantially horizontal section taken throughthe pin-clasp as shown in F 1 at a point just above the two slidemembers; and

Fig. 3 is a perspective view of one of the slide members before theouter end thereof has been coiled to constitute a terminal enlargementand a mounting means for the shank of a pin means proper.

Referring to the details of the drawing, the two pin means proper areindicated at 4-, each being l.-shaped with one leg of the t.constituting the shank and the other leg constituting a terminallysharpened pinning length, all as clearly shown in the drawing.

The upstanding shank of each pinning means 4 is embraced by thecoiled-over end 5 of a striplike slide member 5; and is there secured inplace by a suitable clinching, soldering, brazing or like operation.

As will be clearly seen from the drawing, the two slide members 5 havetheir flats in mutual prolongation, and such disposition of the slidemembers is established by slidably mounting each slide member in anelongate slot 6 in an end wall 7 of the main central structure 8. Thiscentral structure further includes a length of cylindrical tubing 9, tothe opposite ends of which these walls or disks 7 are brazed orotherwise secured. Thus, with the slide members 6 positioned as justdescribed, and with the walls 7 anchored on the opposite ends-oil tubing9, main structure 8 is a. completely closed one all over. Tubing 9 mayvery well be a length of a standard brass or similar tube gold-plated.

It will further be seen that the construction as so far describedprovides a perfectmeans for wholly containing and concealing anexpansile coil spring 10 associated with each slide member 6. And inorder to arrange each such spring to function relative to its slidemember to resiliently urge the same towards maximum retraction rel ativeto the main central structure 8, a shaping of the inner end of each suchslide member, such that there will be absolutely no loss of materialeven for this means, is resorted to. As perhaps most clearly shown inFig. 3, such shaping is a longitudinal slitting of the inner end of eachslide member 6 to provide upper and lower leaves which may be bent intooppositely directed tongues 11 and 12.

Variations may, of course, as hereinabove stated, be incorporated withinthe scope of the following claims.

I claim:

1. I11 a pin-clasp of the kind described including a main centralstructure and a pair of relatively movable pins carried by the mainstructure and having oppositely directed points offset from the mainstruc ture and normally spring-urged toward each other, the combinationof means for thus spring-urging such pins while maintaining one of thepins slidable on the main structure, said means including a memberslidably mounted on the main structure, said member including a lengthof strip metal-of a uniform rectangular cross-section substantially fromend to end, said member at one end being split to provide oppositelybent tongues, and an expansile coil. spring on the member and restrainedbetween said tongues and a part of the main structure.

2. The pin-clasp defined in claim 1, wherein means are provided forconcealing such tongues and the presence of said springs, said meansbeing provided by the main structure, to this end the latter including ahollow tube having an opening of rectangular cross-section through Whichprotrudes a part of said member beyond its spring.

3. The pin-clasp defined in claim 1, wherein said member at its otherend is bent into a loop for constituting at once an enlargedinstrumentality for finger pull and a looping instrumentality forembracing the shank portion of the pin, the pin being l -shaped and suchshank portion being one or": the legs of the L.

l. In a pinclasp of the kind described including a main centralstructure and a pair of relatively movable pins carried by the mainstructure and having oppositely directed points offset from the mainstructure and normally spring-urged toward each other, the combinationo'f-means for thus spring-urging such pins While maintaining one of thepins slidable on themain structure, said means including a memberslidably mounted on the main structure, said member including a lengthof stripmetal of uniform rectangular cross-section substantially fromend to end, said member at one end being bent into a loop forconstituting at once an enlarged instrumentality for finger pull and alooping instrumentality for embracing the shank portion of the pin, thepin being L-shaped and such shank portion being one of the legs of theL.

JOSEPH ZANGRILLI,

